Measurements:
°C
°F
Rehoboth Beach
74°F
SW 14 mph
Feels like: 74°F
Precip: 4%
World Resorts USA Rehoboth Beach Weather

7 Day Weather Forecast

09.15
tue
DAY
74°F
W 14 mph
precip
8%
NIGHT
72°F
NW 11 mph
precip
9%
09.16
wed
DAY
72°F
W 6 mph
precip
5%
NIGHT
74°F
N 9 mph
precip
5%
09.17
thu
DAY
74°F
N 9 mph
precip
5%
NIGHT
76°F
NE 14 mph
precip
9%
09.18
fri
DAY
78°F
SW 8 mph
precip
17%
NIGHT
78°F
W 11 mph
precip
6%
09.19
sat
DAY
76°F
NW 17 mph
precip
20%
NIGHT
78°F
N 16 mph
precip
14%
09.20
sun
DAY
86°F
E 9 mph
precip
9%
NIGHT
78°F
SW 14 mph
precip
75%
09.21
mon
DAY
76°F
SW 13 mph
precip
74%
NIGHT
76°F
W 19 mph
precip
25%

Rehoboth Beach Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Rehoboth Beach was 24.6°F. The maximum and minimum values were 23.4°F and 25.6°F respectively.

Rehoboth Beach on the Weather Map

Best Time to Visit Rehoboth Beach
The most sunny months:
November 17 days
June 15 days
October 15 days
The most warm months:
July 85.5 °F
August 82.9 °F
June 79.4 °F
Warmest sea temperature:
July 79.2 °F
August 78.7 °F
September 75.8 °F
The most cold months:
January 39.2 °F
February 41.8 °F
December 44.8 °F
The most rainy months:
August 4 days
July 3 days
February 3 days
The most windy months:
March 12 mph
January 12 mph
February 12 mph